These functions had dummy implementations, but were not virtual.
The need for those functions seems to be lost in time.
Bug: None
Change-Id: I66dcac4a92f9993d82031f943f2f9ae767156b8a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/330422
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41336}
b54bf8a9af